Fragaria plant named ‘Dahli’

ABSTRACT

A new and distinct  Fragaria  x  ananassa  plant named ‘Dahli’ which is characterized by the combination of a globular plant profile, very early fruiting, large orange-red fruit with a glossy luster, and the stability of these characteristics from generation to generation.

Latin name of the genus and species: The Latin name of the genus and species of the novel variety disclosed herein is Fragaria x ananassa.

Variety denomination: The inventive cultivar of Fragaria disclosed herein has been given the variety denomination ‘Dahli’.

BACKGROUND OF THE INVENTION

Parentage: ‘Dahli’ is the result of a controlled pollination breeding program carried out in April on 2010 in Ens, Netherlands. The new variety originated as a seedling from the crossing of Fragaria x ananassa ‘03-08-01’ (unpatented), the seed parent, with Fragaria x ananassa ‘07-46-01’ (unpatented) as the pollen parent. Seed from said cross was harvested, then germinated, and the resulting seedlings were grown to a mature size in order to evaluate for desirable commercial characteristics. In August of 2009, the inventor selected the new Fragaria for commercialization. This new and distinctive cultivar was given the name ‘Dahli’.

Asexual Reproduction: Asexual reproduction of ‘Dahli’, by way of rooting stolon cuttings, was first performed in July of 2011 in Ens, Netherlands. Through eight subsequent generations, the unique features of this cultivar have proven to be stable and true to type.

SUMMARY OF THE INVENTION

The cultivar ‘Dahli’ has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, day length, and light intensity, without, however, any variance in genotype. The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Dahli’. These characteristics in combination distinguish ‘Dahli’ as a new and distinct Fragaria cultivar:

-   -   1. Fragaria ‘Dahli’ exhibits a globular plant profile; and     -   2. Fragaria ‘Dahli’ exhibits very early, short-day fruiting; and     -   3. Fragaria ‘Dahli’ exhibits large, firm fruit with a sweet         flavor; and     -   4. Fragaria ‘Dahli’ exhibits glossy fruit with an orange-red         general coloration.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, an exemplary 3 month old ‘Dahli’ plant, grown at a commercial greenhouse in Ens, Netherlands.

FIG. 2 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, the typical foliage of ‘Dahli’.

FIG. 3 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, the typical fruit of ‘Dahli’.

BOTANICAL DESCRIPTION OF THE PLANT

The following is a detailed botanical description of a new and distinct variety of Fragaria known as ‘Dahli’, based upon observations of 3 month old greenhouse-grown plants in 250 cc nursery containers, produced in Ens, Netherlands. Plants were grown using conventional greenhouse production protocols for Fragaria plants which consisted of drip irrigation, as well as fertigation applications. Biological insect control measures were utilized in production. Plants were produced with full sun exposure and no photoperiodic treatments or artificial light was given to the plants. Observation data was recorded in April of 2018.

Those skilled in the art will appreciate that certain characteristics will vary with older or, conversely, with younger plants. ‘Dahli’ has not been observed under all possible environmental conditions. Where dimensions, sizes, colors and other characteristics are given, it is to be understood that such characteristics are approximations or averages set forth as accurately as practicable. The phenotype of the variety may differ from the descriptions set forth herein with variations in environmental, climatic and cultural conditions. Color notations are based on The Royal Horticultural Society Colour Chart, The Royal Horticultural Society, London, 2015 edition.

A botanical description of ‘Dahli’ and a comparison with the parent plants and the most similar commercial Fragaria cultivar known to the inventor, is provided below.

-   Plant description:     -   -   Growth habit.—Acaulescent, stoloniferous perennial;             flattened globular shape with leaves and inflorescence             developing from basal crowns with approximately 3 crowns per             pot; no lateral branching is present.         -   Plant form.—Globular.         -   Average height.—38.1 cm.         -   Average width.—63.5 cm.         -   Plant vigor.—Moderately vigorous.         -   Rate of growth.—Moderately fast growing.         -   Propagation details.—Asexual propagation is accomplished by             rooting stolon cuttings.         -   Time to initiate roots.—Rooting is initiated in             approximately 7 days when grown with an ambient average             temperature of 17 degrees Celsius.         -   Time to produce a marketable rooted cutting.—Approximately             30 days to produce a rooted cutting.         -   Pest resistance and susceptibility.—Not any more or less             tolerant or susceptible to pests or diseases known to effect             Fragaria x ananassa.         -   Environmental tolerances.—Adapt to USDA Zones 4 through 9             and temperatures ranging from at least minus −32 degrees             Celsius to 40 degrees Celsius; low to moderate tolerance to             rain; moderate to high tolerance to wind. -   Root system:     -   -   Type.—Moderately fibrous root system, with adventitious             rooting at stolon nodes.         -   Branching.—Very freely branched.         -   Density.—Moderately dense.         -   Distribution.—The majority of the root system is somewhat             shallow.         -   Diameter.—Largest root's measuring 1.0 mm in diameter.         -   Texture.—Smooth; lacking root hairs.         -   Color.—White, RHS 155B. -   Stolons:     -   -   Length.—65.3 cm.         -   Diameter.—0.3 cm.         -   Texture.—Sparsely to moderately covered with adpressed to             strigose hairs; average length of hairs is 0.2 cm; colored             translucent white, nearest to RHS NN1 55D.         -   Color.—Yellow-green, nearest to a mixture of RHS 144A and             144B. -   Foliage:     -   -   Arrangement.—Alternate.         -   Attachment.—Petiolate.         -   Attitude.—Upward and outward.         -   Division.—Trifoliate.         -   Shape.—Reniform.         -   Length.—17.2 cm, excluding the petiole.         -   Width.—22.4 cm.         -   Quantity.—9 leaves per crown.         -   Leaflets.—Quantity — 3. Shape — Broad ovate to near             orbicular. Length — 12.1 cm. Width — 11.0 cm. Aspect —             Slightly to moderately carinate. Apex — Abruptly acute. Base             — Short attenuate. Margin — Coarsely crenate to serrate.             Texture, adaxial surface — Slightly rugose and sparely             covered with very thin, soft hairs with an average length of             0.15 cm; hairs are a translucent white, nearest to RHS             NN155D. Texture, abaxial surface — Slightly rugose and             moderately covered with very thin, soft hairs with an             average length of 0.15 cm; hairs are a translucent white,             nearest to RHS NN155D. Luster, adaxial surface — Slightly             glossy. Luster, abaxial surface — Matte. Color — Juvenile             foliage color, adaxial surface — Yellow-green, nearest to             RHS 144A, and margined slightly darker, nearest to RHS 143A.             Juvenile foliage color, abaxial surface — Yellow-green,             nearest to RHS 144B. Mature leaf color, adaxial surface —             Green nearest to RHS NN137A. Mature leaf color, abaxial             surface — Nearest to in between yellow-green, RHS 147B, and             greyed-green, RHS 191A. Venation — Type — Pinnate. Vein             color, adaxial surface — Yellow-green, nearest to RHS 144A.             Vein color, abaxial surface — Yellow-green, nearest to RHS             145A.         -   Petiole.—Length — 28.8 cm. Diameter — 0.4 cm. Strength —             Strong. Color, adaxial surface — Yellow-green, nearest to in             between RHS 144A and 144B. Color, abaxial surface —             Yellow-green, nearest to RHS 144B. Texture, adaxial and             abaxial surfaces — Densely covered with thin, soft strigose             hairs with an average length of 0.2 cm; hairs are a             translucent white, nearest to RHS NN155D. Luster, adaxial             and abaxial surfaces — Glossy.         -   Stipules.—General — Two leafy stipules present at the base             of each leaf. Shape — Narrow deltoid. Length — Average of             3.1 cm. Width — Average of 0.4 cm. Apex — Narrowly acute.             Base — Broad cuneate. Aspect — Folded. Color, adaxial             surface — Yellow-green, nearest to RHS 145A, and margined             greyed-purple, nearest to RHS 184D. Color, abaxial surface —             Yellow-green, nearest to RHS 145A, and margined             greyed-purple, nearest to RHS 184D. Texture, adaxial surface             — Glabrous. Texture, abaxial surface — Glabrous. -   Inflorescence:     -   -   Type.—Compound cymose panicle, generally referred to as a             truss.         -   Natural flowering season.—From spring into summer in Ens,             Belgium.         -   Time to flower.—9 months.         -   Quantity of open flowers per inflorescence.—3.         -   Quantity of buds per inflorescence.—15.         -   Length.—22.5 cm, including the peduncle.         -   Diameter.—15.9 cm.         -   Peduncle.—Length — 9.0 cm. Diameter — 0.4 cm. Aspect — At an             average angle of 65 degrees to horizontal. Strength —             Moderately strong. Texture — Densely covered with thin, soft             strigose hairs with an average length of 0.2 cm; hairs are a             translucent white, nearest to RHS NN155D. Luster — Slightly             glossy. Color — Yellow-green, nearest to a mixture of RHS             144A and 144B. -   Flower buds:     -   -   Shape.—Broad ovate.         -   Length.—Average of 1.5 cm.         -   Diameter.—Average of 1.2 cm.         -   Texture.—Moderately covered with thin, soft hairs with an             average length of 0.02 cm; hairs are a translucent white,             nearest to RHS NN155D.         -   Luster.—Matte.         -   Color.—Green, nearest to a mixture of RHS 138D and 143C, and             becoming yellow-green at the base, nearest to RHS 145B. -   Flower:     -   -   Form.—Rotate; single.         -   Aspect.—Upright and outward.         -   Flower diameter.—3.5 cm.         -   Flower length.—1.4 cm.         -   Fragrance.—Slight sweet fragrance.         -   Lastingness.—Approximately 7 days.         -   Persistent.—Self-cleaning.         -   Pedicels.—Length — Varying from 2.6 cm to 15.5 cm. Diameter             — 0.15 cm. Aspect — Upward; approximately 45 degrees to the             peduncle axis. Strength — Moderately strong. Texture —             Densely covered with thin, soft strigose hairs with an             average length of 0.15 cm; hairs are a translucent white,             nearest to RHS NN155D. Luster — Slightly glossy. Color —             Yellow-green, nearest to RHS 144C.         -   Petals.—Arrangement — Rotate with a single whorl of free             petals. Quantity of Petals — 6. Shape — Near orbicular to             reniform. Length — 1.05 cm. Width — 1.2 cm. Apex — Obtuse.             Base — Cuneate. Margin — Entire; lightly undulated. Aspect —             Concave. Texture and luster of upper surface — Moderately             velvety; matte. Texture and luster of lower surface —             Moderately velvety; matte. Petal color when opening, upper             surface — White, nearest to RHS NN155C, and slightly darker             towards the base, nearest to RHS NN155B. Petal color when             opening, lower surface — White, nearest to RHS NN155C. Petal             color when fully opened, upper surface — White, nearest to             RHS NN155C, and slightly darker towards the base, nearest to             RHS NN155B. Petal color when fully opened, lower surface —             White, nearest to RHS NN155C. Petal venation color, fully             opened, upper surface — Veins are not visible. Petal             venation color, fully opened, lower surface — Veins are not             visible.         -   Calyx.—Shape — Rotate. Length — 0.7 cm. Diameter — 3.5 cm.             Sepals — Arrangement — Rotate with sepals in a single whorl             and fused at the base. Quantity — 12. Length — 1.5 cm. Width             — 0.6 cm. Shape — Ovate to narrow elliptic. Apex — Acute.             Base — Fused. Sepal lobe margin — Entire; not undulated.             Texture, upper surface — Sparsely covered with thin, soft             strigose hairs with an average length of 0.1 cm; hairs are a             translucent white, nearest to RHS NN155D. Texture, lower             surface — Sparsely covered with thin, soft strigose hairs             with an average length of 0.1 cm; hairs are a translucent             white, nearest to RHS NN155D. Luster, adaxial surface — Very             slightly glossy. Luster, abaxial surface — Matte. Color when             opening, upper surface — Green, RHS 141A. Color when             opening, lower surface — Green, nearest to in between RHS             138B and 143C, and becoming yellow-green at the base,             nearest to RHS 145B. Color when fully opened, upper surface             — Green, RHS 141A. Color when fully opened, lower surface —             Green, nearest to RHS 138B, and becoming yellow-green at the             base, nearest to in between RHS 145B and 150B.         -   Bracts.—Position — A single bract is present at the base of             each pedicel. Shape — Narrow elliptic to narrow ovate.             Length — 1.7 cm. Width — 0.5 cm. Apex — Aristate. Base —             Broad cuneate. Aspect — Folded. Color, adaxial and abaxial             surfaces — Green, nearest to RHS 143B. Texture, adaxial             surface — Glabrous. Texture, abaxial surface — Moderately             covered with soft adpressed hairs with an average length of             0.1 cm; hairs are a translucent white, nearest to RHS             NN155D. -   Reproductive organs:     -   -   Stamens.—Quantity — Approximately 30. Anthers — Attachment —             Basifixed. Shape — Ovate. Length — 0.15 cm. Width — 0.1 cm.             Color — Orange, nearest to RHS 11A. Filaments — Length —             Approximately 0.3 cm. Color — Yellow-green, nearest to RHS             145D. Pollen, amount — None detected.         -   Pistil.—Quantity — 250. Length — 0.1 cm. Style — Length —             0.9 cm. Color — Green-yellow, nearest to RHS 1B. Stigma —             Shape — Club-shaped. Length — 0.05 cm. Diameter — 0.05 cm.             Color — Green-yellow, nearest to RHS 1A. Ovary Color —             Yellow-green, nearest to RHS 144C. -   Seed and fruit:     -   -   Fruit.—Harvest Season — Early spring in the Netherlands.             Fruit Yield — An average of 500 grams of total fruit are             produced by each plant in a season. Quantity — An average of             16 per plant. Dimensions — 4.5 cm long and 4.0 cm in             diameter. Weight — 16.0 grams. Shape — Long conic. Texture —             Sparsely covered with thin, soft hairs with an average             length of 0.1 cm; hairs are a translucent white, nearest to             RHS NN155D. Luster — Glossy. Firmness — Very firm. Color —             Immature fruit — White, RHS 157C. Immature flesh — White,             RHS 155C. Mature fruit — Red, nearest to a mixture of RHS42A             and 44A, and fading to orange-red towards the proximal end,             nearest to RHS N43B. Mature flesh — Orange-red, RHS N34C.             Fruit flavor — Moderately sweet.         -   Achenes.—Position — Below the fruit surface. Quantity of             achenes per fruit — Approximately 250. Shape — Flattened;             outline is ovate. Length — 0.15 cm. Diameter — 0.08 cm.             Texture — Smooth; glabrous. Color — Greyed-orange, nearest             to RHS 164B.

COMPARISON WITH THE PARENTS

Plants of the new cultivar ‘Dahli’ may be distinguished from its seed parent, Fragaria x ananassa ‘03-08-01’ (unpatented), by the characteristics described in Table 1.

TABLE 1 Characteristic ‘Dahli’ ‘03-08-01’ Plant form. Globular. Flattened globular. Time to ripening. Later than ‘03-08-01’. Earlier than ‘Dahli’. Luster of the fruit Glossier than ‘03-08-01’. Less glossy than ‘Dahli’. surface.

Plants of the new cultivar ‘Dahli’ may be distinguished from its pollen parent, Fragaria x ananassa ‘07-46-01’ (unpatented), by the characteristics described in Table 2.

TABLE 2 Characteristic ‘Dahli’ ‘07-46-01’ Foliage size. Larger than ‘07-46-01’. Smaller than ‘Dahli’. Fruit yield. Higher yield than ‘07-46-01’. Lower yield than ‘Dahli’. Fruit size. Larger than ‘07-46-01’. Smaller than ‘Dahli’.

COMPARISON WITH THE CLOSEST KNOWN COMMERCIAL COMPARATOR

Plants of the new cultivar ‘Dahli’ may be distinguished from the most similar known commercial comparator, Fragaria x ananassa ‘Honeoye’ (not patented), by the characteristics described in Table 3.

TABLE 3 Characteristic ‘Dahli’ ‘Honeoye’ General coloration Orange-red. Dark red. of the mature fruit. Luster of the fruit Glossier than ‘Honeoye’. Less glossy than ‘Dahli’. surface. Fruit firmness. Firmer than ‘Honeoye’. Less firm than ‘Honeoye’. 

That which is claimed is:
 1. A new and distinct cultivar of Fragaria x ananassa plant named ‘Dahli’, substantially as described and illustrated herein. 